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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef CompositorMutableStateProvider_h |
| 6 #define CompositorMutableStateProvider_h |
| 7 |
| 8 #include "platform/PlatformExport.h" |
| 9 #include "wtf/PassOwnPtr.h" |
| 10 |
| 11 #include <cstdint> |
| 12 |
| 13 namespace cc { |
| 14 class LayerTreeImpl; |
| 15 } // namespace cc |
| 16 |
| 17 namespace blink { |
| 18 |
| 19 class CompositorMutableState; |
| 20 struct CompositorMutations; |
| 21 |
| 22 // This class is a window onto compositor-owned state. It vends out wrappers |
| 23 // around per-element bits of this state. |
| 24 class PLATFORM_EXPORT CompositorMutableStateProvider { |
| 25 public: |
| 26 CompositorMutableStateProvider(cc::LayerTreeImpl*, CompositorMutations*); |
| 27 ~CompositorMutableStateProvider(); |
| 28 |
| 29 PassOwnPtr<CompositorMutableState> getMutableStateFor(uint64_t elementId); |
| 30 private: |
| 31 cc::LayerTreeImpl* m_state; |
| 32 CompositorMutations* m_mutations; |
| 33 }; |
| 34 |
| 35 } // namespace blink |
| 36 |
| 37 #endif // CompositorMutableStateProvider_h |
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